Hey guys what's up? I've been real busy and had a few things to post, right now I'm here with a new story for you. For this fic though, I'm working with someone that requested me to make these ideas of his real. He is Heero Yuy009. He gave me the base ideas and the rest is me. This is a crossover between High School DxD and Naruto Shippuden.

Also I do not own either of the two anime or their characters.

Now then, here we go.

The Household of Infinite

Chapter 1

The encounter and proposal

Long ago there were a number of families that resided in the underworld, some of these households went by ancient names passed down through generation to generation. The house of Gremory, The household of Sitri, The household of Bael, The house of Astoroth and much more. This race which hailed from the underworld are known as Devils. But they weren't the only ones, other races also existed. The Angels that hailed from heaven and ruled the skies, and the Fallen Angels that had fallen from grace and hail from their own world.

At a point in time a cataclysmic war broke out between the Fallen Angels, Angels and Devils, the war left each side greatly wounded and a large amount of the Underworld Families were lost. This left only 72 great Households, now known as the 72 Pillars. The house of Gremory, Sitri, Bael and Astoroth included.

The Four Great Satans of the Underworld also died, and another four were chosen to take their place. Sirzechs Gremory of the Gremory family took on the role as Lucifer, making his name Sirzechs Lucifer. A member of the Sitri household, Serafall Sitri, took place as another Great Satan Leviathan. Making her Serafall Leviathan. And two others that were worthy of the titles entrusted.

There was also another great household that was lost in the war, but a lot of people simply forgot about them as they didn't make much of an impression during the early days before the war.

At a desolate area of the underworld where absolutely no life thrives, we come across a high cliff with someone standing at the edge. A short young looking girl stood overlooking the vast land of only rock and rubble for miles on end. She had tall raven hair that reached her lower back and ended in streaks. She had pale skin and wore dark Lolita style clothes. And dark, wide pupiled eyes looked on emotionlessly.

"I swear on my name, I will bring you back. My household."

This young girl was truly the leader of the household, and if she had been there during the war then she would have led them to victory, she is an extremely powerful being that knows no equal. But unfortunately she had not been present. It was truly tragic, she felt horrible inside, it was up to her to be there for her household and she had not been.

If only she had been there then she could have been great help…. She stopped her thoughts and moved them to the back of her mind as she sensed a presence nearby.

A tall young man appeared behind her and looked around for a moment, then he let his gaze land on her back. "You know, standing out here and staring about aimlessly like this won't do you any good. If 'that' is what you want then you know what you must do."

She answered without looking back at him, "I know that, Vali. I will indeed get to it as soon as possible. Is everything ready?"

He grunted in answering. She nodded and turned around to walk towards him. "Then I'll be going. You can go back to that man's side if you want. I will call for you when the time comes."

He chuckled, "You sound almost jealous about it."

She gave him a blank look, not willing to humor him.

"Well you already know that I only stay by his side at times to get close to the ones he is involved with. As long as I keep that up then I will get what I want with less effort. And besides, his company isn't bad."

She nodded, "I know, he and I were very close friends a long time ago. I myself had stayed by his side for a time until I got bored with this world and went back to my world. Which has now been…."

For the first time ever, Vali saw the young girl show an emotion that is very rare for her. Anger.

Wary of the massive amount of energy she has within her, he took a step back, just in case. "Calm down. You shouldn't think about that because you know it will only anger you."

She took a deep breath, and exhaled. "I wasn't being jealous by the way, but you know I enjoy your company Vali. It's time I get going to that other realm. I'll see you soon."

With a snap of her fingers, a rip in time and space occurred. Within it was a kaleidoscope of blue an white. She stepped in and it snapped shut behind her.

Vali stood there in silence for a moment, running a hand through his silver hair he exhaled. "Well I'll see you when the time comes."

His entire body turned to blue light and he shot off to the skies in the form of, almost like electricity, and went away at great speeds.

Two months later

In another world, dimensions away from the underworld, we come to a large village surrounded by forestry all around. This village is known as Konohagakure, otherwise known as the village hidden within the leaves. The villagers could be seen walking around going about their daily activities and such. A young man with dark hair cut short and held in a ponytail was walking along with a bored look on his face. Dressed in his normal attire; dark ninja pants and a jacket, this is Shikamaru Nara. An average shinobi who doesn't like to do much and is quite lazy.

Now a days things have gotten pretty boring, the war with that tyrant Madara had been over for a month now and the village was still in the process of rebuilding. A lot was lost and Shikamaru often found himself mourning slightly over his father. Shikaku Nara, had been one of the few who didn't make it. He died in action and was honored greatly for his efforts. But Shikamaru knew better than to live only in the past and walk around depressed, instead he chose to look towards the future. After the mess, Lady Tsunade had stepped down and Kakashi was promoted to Hokage. Shikamaru figured that was mainly because Naruto was still just a teenager and way too inexperienced. He had been the one to fight off Madara, and that horrible woman kaguya, after all. With help from Sasuke of course.

Considering these facts he was sure Tsunade would highly recommend the young blond, but not yet. He needed to grow a bit more first. So for the time being Kakashi would take the reins in her stead. Where Naruto was, he wasn't sure, the kid had been disappearing almost every day now and only came back at night. Normally exhausted and a little dirty. Obviously the boy must have been going out to train and get stronger.

As for the other hero, Sasuke, he had been gone for a few days now. To where one might wonder, but who knows, Shikamaru had always wondered about the guy. Oh well, it was his choice to do things however he wanted. Right now Shikamaru had other things on his mind. Like playing a nice game of chess. It was a board game one of the old guys came up with one day and it was very interesting and fun to play. Like Shogi, the game focused on patience and strategizing.

Oh how he loved a good strategy game, he was one of the best at it and people would often opt to play with him, well unless they weren't afraid of losing. He had a total of twenty wins and zero loses. A confident smile came to his lips, oh yeah, it was time to make that twenty one wins. There was something that had been on his mind other than that though, he had been hearing about someone that wasn't from the leaf village that had been hanging out around there in the day. Most likely a traveler who decided to stop by for a while, anyway people talked a lot about this person, that they were amazing at the game and hadn't lost yet. Today Shikamaru was intending to beat this person.

Stepping into the bar that was built for a hangout area and a place they played chess, he looked down the row where a few tables with chess boards laid out for whoever wanted to play felt free to sit an go ahead. Looking to the back, he saw a young girl sitting at a table by herself. She looked odd to him, dressed way differently than everyone else he had seen, even travelers. Dark hair, dark almost emotionless eyes, she looked to be about thirteen or fourteen. I wonder who she is. Could she be? No way, she looks way too young to be the one they've been talking about. Shikamaru wondered if she was the one, but dismissed the thought.

Two guys were off to the side and saw Shikamaru walk in, instantly the one on the right got a smile on his face.

"Hey, Shikamaru. Come over here for a sec."

Walking over he stopped in front of the guy, "What's up?"

He put one hand on the teens shoulder and talked in a hushed tone, "You see that little girl down there? She's the one everybody's been talking about."

"You're kidding right? That's really her?"

Nodding to him in confirmation, Shikamaru took another look at her. Taking notice of how no one attempted to approach her to take her on.

"It's really that kid huh…" he trailed.

The guy nodded again. "Yeah, man. My friend here just lost to her, and he's pretty good."

Shikamaru chuckled. So she's the big bad chess master huh. Well, I think it's time to change that. "Alright guys, leave it to me."

Walking forward, he could hear the chuckles behind him and some pep talk like, "Oh yeah, the real master's gonna take down another"

As he continued walking towards here, she took notice and he could swear she smiled a little. As he took a seat, he greeted her.

"I hope you don't mind if I take this seat. How about a game?"

She was quiet for a moment, as if weighing her decision.

She nodded finally, "Alright, let's begin then."

Shikamaru noted her voice sounded like a thirteen or fourteen year old, but with a slight touch of maturity lying within.

Nodding Shikamaru took a look at the board, smiling at the wooden pieces. The knight piece, rook, bishop, king, queen and his pawns up front. The same old guy who created the game named all the pieces as well, even made a small hand book with the names of the pieces, rules of the games and all that. He looked back up at her, expectantly.

She smiled at him, "Oh no, you can take the first move. I insist."

Grunting in agreement, Shikamaru took hold of his knight, and moved it out front.

The girl smiled and took hold of a pawn. And so the game begins…. She thought to herself.

It was almost three hours after they begun, and they were still at it. People started gathering around to watch their ace at this game, Shikamaru, who seemed to be struggling with this game. Most of his pieces were off to the side on the girls left, and most of hers were also on Shikamaru's left. At this point, he only had one of his knights, a rook and his king left. While the girl had both her knights, one bishop and both her king and queen pieces.

'Damn, she way better than I thought. After so long and I haven't even gotten close to putting her in check.' Shikamaru thought. This was taking a while, and as it was he was getting nowhere. Taking her rooks, and one of her bishops had been slightly easy enough, but it was nearly impossible trying to get her queen and also to try and put her in check let alone get checkmate.

Looking up at her he wondered if she was even trying at all, her face held a very calm expression. As if she actually let him take some of her pieces all together and was just playing around. For the first time in a long while, Shikamaru felt frustrated.

'This wasn't as hard as I was expecting. But still I have to give him credit, my efforts of trying to get checkmate were avoided rather skillfully on his part. Sacrificing some of his pieces to stop me.' Nodding to herself slightly after looking at him again. She made her decision.

'And now it's time for me to end this little game of ours.'

Taking one of her knights she moved it up two spaces then moved it to the right. Putting it right in front of his king. Shikamaru saw that and moved it back one space. Now the girl moved her queen piece out to the left of his king.

Shikamaru narrowed his eyes a bit, his king was now in check and that wasn't good. He moved it back again putting it at the back of the board. The girl took hold of her next knight and put it to the edge of his side of the board. Since it was near the end anyway. Shikamaru smiled just a bit at this, his remaining rook was right at the back of the board.

Perfect.

Taking it, he moved it right down and claimed her knight. Looking back up at her, waiting for her to take her move. He was surprised when she smiled at him, making him feel wary as if he had thought he had his opponent but actually fell for a trap that was set. As he watched, she took hold of her queen and moved it right where she wanted it to go to the left. And that was it.

Shikamaru, let out a breath he had been holding. 'Damn' he thought. The girl smiled again, then said that dreadful word that Shikamaru thought HE would be saying at the end.

"Check. Mate."

Everyone around gasped, their ace had lost, it seemed like the impossible came true. He had never ever lost before, and then this little girl took him and made it look easy. Shikamaru looked a bit disappointed, disappointed in himself for losing. And to a little girl too!

After a moment he smiled, chuckled and then looked up at her again. "Well, you beat me. That was a good game, I hope we can play again sometime." He held out his hand to her, offering a courteous hand shake.

She took it. And shook.

"Of course, it would be interesting to say the least." Letting go of her hand Shikamaru stand to leave but was stopped by the girl.

"Hold on, would you mind if I had a word with you outside? Just for a minute." She stood and gestured to the door.

He didn't answer right away, wondering why she would want to have a chat. "Well I don't see why not."

She nodded and walked ahead of him, leaving the bar and making a right she continued. The teen following close behind.

She spoke without looking back at him, "Actually, I would prefer if we could go somewhere more private to talk. Would that be too much trouble for you?"

This made Shikamaru narrow his eyes a bit, why would she want to talk to him in private? She couldn't possibly be? No that can't be it, he hoped at least.

"Why would that be?"

She stopped her stride and turned to face him, "Because what I am about to tell you will be for your ears only. No one else needs to know, so would you mind coming with me?"

He thought for a few moments and nodded, "Sure. Let's go then."

Satisfied she turned and, to Shikamaru's surprise, leaped off the ground with a slight spring to her feet. Shaking it off he followed quickly, they hoped around for a bit and finally landed outside the village walls. Now they were outside the forest a little ways away from the village, not too far but far enough. Shikamaru watched as the girl walked out a little bit and stopped, she looked around and then closed her eyes. After a minute she nodded, looking content.

Turning to him she grunted, "I was just checking to see if anybody was nearby. It's just us, now then, let me get straight to it-"

Before she could finish Shikamaru cut her off, "Hold on, before you get into that, I wanna know who you are. So out with it."

She nodded again, "I was going to get to that eventually. My name is Ophis. Ophis infinite."

Shikamaru played around with the name in his head a little, it was kind of weird in a way to the sound of it. But something made him wonder about the infinite part.

"Well. Alright, I'm Shikamaru Nara."

She nodded once again, she's really been doing it a lot. "Ok now that that it out of the way. Shikamaru. I've been keeping an eye on you for a few days since I got here and saw you, the very instant I laid eyes on you I felt intrigued. Then I saw how well you played chess with the ones in the village. That is why I started to play myself and become… popular I guess, yes that works. I knew that if I did that then people would start talking about me, and thus you would have heard and get interested in playing a game with me. When you walked in I wasn't surprised, then seeing those two talking to you I knew you would be challenging me right after."

Seeing that he was listening intently, she continued.

"Take a look at this." She reached in one of her small pockets and took out a chess piece, presenting it to him, Shikamaru noticed it was a king piece but it was nothing like the ones they had. This one was white from top to bottom with a strip of blue close to the top and a few lines, looking like mesh, around the middle that glowed with blue. Taking a closer look he noted, the entire chess piece glowed with a ghostly white and seemed to radiate power.

"This is called an evil piece, much like your chess pieces but it is far more complex and contains a vast amount of power. With this, you can have the abilities of a king of your peerage and-"

She stopped herself suddenly, noticing the confused look on his face.

"I apologize, I think I was just getting ahead of myself. The main point to this is, I want you to come with me to the underworld. But before you will have to-"

Shikamaru cut her off, "Hold on a minute, what do you mean underworld? And what's all this stuff about evil piece and it containing vast amounts of power?"

Ophis stood there for a moment, weighing her answer before speaking. "Since this will be rather hard for you to grasp. I will try to explain to you however I can so you will understand. Shikamaru Nara I need your help, I am trying to bring back my household which was lost in the last war that took place a few years ago. This is something that is very important to me and will take a lot of explaining. So I will start from the beginning."

He was about to protest but she silenced him with a glare. Rolling his eyes and nodding with a grunt she began as he crossed his arms and leaned against a tree. Ophis began explaining to him about the three way war and also about the three races, her house hold, and what was currently going on in the underworld.

Shikamaru remained silent through the whole thing, taking it in and trying to get a grasp on all this info, it baffled him at a few points but after seeing what something like Madara and Kaguya were capable of and the feats Naruto and Sasuke could accomplish, he decided that all this was very possible.

He scratched his head and looked up for a bit, "This is a lot to take in. However, I can't be completely sure this is all true. I mean it sounds a little farfetched to me."

Ophis shook her head and sighed, "I didn't expect you to believe me right away. But I am telling the truth, what I told you really happened and a lot of people died. From all three factions including the person I put in the position to overlook and protect my household. But…" She sighed again as she started thinking about the loss of her household once more. "I truly regret not being there…"

At this Shikamaru actually felt bad for her. He was hardly one to be sympathetic, unless for the right people and or situation, but somehow that's how he felt for her. There was something else stirring inside him as well, but he couldn't place what it was.

"Ok so, say I believe you, how does all this concern me?"

She thought about her answer carefully. If she wanted his help she has to make some kind of break through with him. "I didn't spend a number of days keeping tabs on you for nothing. As I said before, the moment I saw you I knew you could be of great help to me. There was hearing about how well you played chess so I decided to play the game a bit and get people to talk about me, as I already said, and then there was the game we had not too long ago. Most of the others I claimed victory against never stood a chance, they fell for every trick and pretend capture of my pieces that I 'let' them capture. It was nothing more than child's play to beat them. But with you… you gave me a bit of a challenge. You didn't fall for every ploy and kept your king safe from me for a good while until I won. By giving me a challenge in a game such as that one, you showed me just how good you can be at strategizing and at being patient. It also showed your intelligence to an extent, the extent required for a game of chess that is."

Shikamaru picked up on where she was getting at with this, "Uh-huh. So if I have this right, you were looking for someone to help you with this whole endeavor of yours?"

She nodded and he went again, "Then when you saw me for the first time you had a feeling that I would be the one and then the chess game closed the deal for you. Right?"

"Yes. That's correct."

He grunted and stroked his chin in thought, then another thing came back to him. That chess piece.

He pointed at the item she still held in her hand. "Now then, what is to be done about that chess piece, you said that it is more complex than our regular pieces and that it also holds a lot of power. My next question is, how does it involve me? How does it line things up, because the way you talked about it made it seem like an important asset?"

She nodded approvingly at this, "Good question. This King Class Evil piece involves you because you are a mere human. And to enter the underworld you will need to be reincarnated as a Devil."

This caught Shikamaru off guard. She just said reincarnated, as a Devil… that just sounded wrong to him. Why would she want to do that? He understood resurrection and reanimation, but those two were slightly different in how it was done by shinobi. Resurrection would be simply bringing back a dead person to life. While reanimation, as done by their kind, would use a human body as vessel for the soul that would be transferred to it. That soul would then become bound by 'chains' to whoever performed the forbidden technique.

And he also understood reincarnation. But to be reincarnated as a Devil? That just didn't sound right… or even possible. But then again she did mention there was a race that hailed from the underworld called Devils, so that must be what she was talking about. But still, is that possible?

He scratched his head and gave her an expectant look. "I need you to explain that one further for me."

She raised her head as if she felt proud by what he just said, "I expected that. Well, as I told you before, there are races called Devils that live in the underworld. They are as normal as any other being can be but of course with differences. Devils are strong, very much so. And may have certain things you may notice about their appearance. Some look exactly like humans while others look more mythological. All Devils also have bat like wings which they can use to fly as they please. Do you understand so far?"

He nodded and she continued.

"Good. Now we go back to the Evil piece here. This little item can be used to reincarnate you as a Devil. There is this man living in the underworld, one of the current Four Great Satans, who creates these. The Devils all seem to think he is the only one that can create them, but I can as well. I have a number of them with me in my pocket dimensional storage."

She stopped as she realized she might be saying too much again and the young man might be having trouble processing it all. But to her surprise he seemed to understand.

"I think I get it. So with that king chess piece, you can reincarnate me as a Devil?"

She nodded, "Yes, and then you can freely travel to the underworld. There are also a lot more perks that come with it."

"But, wouldn't that make me… well you know. Dead?"

She shook her head and raised a finger, "Not exactly. Being reincarnated as a Devil would change a lot of things about your body but you will still be very much alive. However, and this is one of the many perks that come along, your life span would be greatly increased."

Nodding he asked the question that kept coming back to him, "So it will still be possible for me to die?"

She nodded again.

"Yes… but I will never let that happen."

For a moment Shikamaru felt that he could put trust in her. In an instant she went from casual and stoic to completely serious. It was obvious she took his life into great consideration.

Her mood changed again, going to something more casual with something else to it. "Now onto the question I've been waiting to ask. I've thought about it and I have made my decision." She put both her hands to her sides and took a short breath. "Shikamaru Nara. I hereby request your assistance in rebuilding my lost household. And I also request your companionship for what I hope to be an eternity."

The young shinobi remained quiet for a minute which felt like an hour to both. He wasn't sure what to do. He really felt like he could go along with this, but he was too attached to this place to leave for whatever reason. The leaf village was his home, he was born here, raised here, and has fought to protect here… his home.

"I don't know if I can do that. I'm too attached to this place and I don't feel like I could leave just like that."

In an instant her mood changed again. She looked sad and almost remorseful. "I had a feeling you would be that way. That is too bad, you would have been excellent under my wing. I could, with your help, bring back my precious household to its former glory."

Shikamaru sighed, he was having an internal battle with this. "I just don't know about it… I'm sure I'd be allowed but… I still want to be here always."

Ophis gained some hope at hearing him try to consider her proposal. "Alright how about this. Take some time and think about it. I will not rush you or constantly berate you twenty four seven."

He didn't answer right away, deep in thought. After what seemed like forever he nodded, "Yeah, I need some time to think about this, there is no guaranty but I would like to give it a chance to think about."

She smiled slightly at this, "Thank you for choosing to consider my proposal. I will be leaving you to it then. Take as long as you want and when you have made your decision, just come back to this spot and call my name once. I will hear you and be here to hear your answer. Until then, Shikamaru."

With that she turned around and walked off into the forests, then she faded away as if she were a mere spirit. Shikamaru started towards the village, he hadn't lied when he said he was going to give it some thought, he had meant it. Now he would just take his time and think this through thoroughly.

He was still having second thoughts and maybe wouldn't really consider it…

…but maybe. Just maybe he could consider it and accept Ophis' proposal.

And with that the first chapter here is done. Kinda short but I'll definitely make the others longer. Now then, I have a few things I want you to be aware of here. Ophis will not be the same as she is in cannon. She will show more emotion when the situation calls for it and she will have a better sense of humor. Also I made it so that she can create Evil pieces like Ajuka Beelzebub, her's are white with… well yea how a describe the chess piece in the chapter. She will also care greatly for a certain person… who? Well that is obvious, who was she speaking with for the majority of the chapter?

I will also be changing Shikamaru's personality to suit how I want it and for the story. This will be rated M for strong and intense adult content. You all know what those could be.

Also for those who are wondering…

No, this fic will not include Naruto or Sasuke. Strictly DxD, and it will not involve MOST, but a select FEW of the Naruto world.

Ummm… oh yeah. I have made a few changes to the clothes Ophis wears. For my fic her Lolita style of dressing is still used, but her main outfit will be reduced of the white shorts she wears and replaced by black tights instead. The tights end at her ankles and the shoes she wears from cannon will be kept. Unless I have her change. Also I will be adding a white blouse to her main outfit, think the white blouse Erza of Fairy Tail wears but minus the blue ribbon and add Ophis' pink ribbon. Lastly her hair piece and that little cloak she wears will both be kept. That will be all.

Anyway thanks for reading. You guys are all great. Have a wonderful day!

Or night… depending on what time you get to reading this little new fic of mine.